Slow scintillation time constants in NaI(Tl) for different interacting particles
C. Cuesta, M.A. Oliv\'an, J. Amar\'e, S. Cebri\'an, E. Garc\'ia, C., Ginestra, M. Mart\'inez, Y. Ortigoza, A. Ortiz de Sol\'orzano, C. Pobes, J., Puimed\'on, M.L. Sarsa, J.A. Villar, P. Villar
TL;DR
This study investigates the slow scintillation components in NaI(Tl) crystals caused by different particles, crucial for dark matter detection, revealing particle-dependent scintillation time constants in low-background conditions.
Contribution
It provides the first detailed measurement of slow scintillation time constants in NaI(Tl) for various particles in a low-background underground environment.
Findings
Different particles induce distinct slow scintillation components.
Slow scintillation time constants are characterized in the tens of milliseconds range.
Results aid in particle discrimination for dark matter experiments.
Abstract
Very large thallium doped sodium iodide crystals operated underground and in very low background environment in the context of a dark matter search experiment have been used to determine scintillation components in the tens of ms range in the light pulse induced by different interacting particles: gammas/muons and alphas.
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